Are Enhanced Fujita ratings based on estimated damage before a storm occurs?

The Enhanced Fujita (EF) scale specifically assesses the damage caused by tornadoes after they have occurred, rather than estimating potential damage before a storm hits. This scale evaluates the intensity of tornadoes based on the destruction they leave behind, examining various structures and vegetation in the tornado's path. The ratings range from EF0 to EF5, indicating a scale of increasing damage severity.

By focusing on actual observed damage, the EF scale provides a more accurate representation of a tornado's impact rather than hypothetical scenarios that would precede a storm. This methodology allows meteorologists and researchers to correlate tornado characteristics with the resultant damage, improving their understanding of tornado behavior and aiding in future preparedness and response strategies. Thus, stating that Enhanced Fujita ratings are based on estimated damage before a storm occurs would be incorrect, as they are intrinsically linked to the post-event assessment of destruction.